Pipe-turning apparatus.



B. E. WILLIAMS. PIPE TURNING APPARATUS. APPLIOATION FILED r313. 24, 1900.

Patented Jan. 12, 1909. 2 SHEETS-SHEET 1.

'wlmsssas':

INVENTOR B'r MIME) 1-H: mums PETERS cm, waamucmn, a. c.

E. H. WILLIAMS. PIPE TURNING APPARATUS.

APPLICATION rnrsn FEB. 24, 1906.

Patented Jan. 12,1909.

2 sums-sans: 2.

' mm rok ZE 74 7/00;

ATTORNEY L THE NORRIS rsrsns co., WASHINGTON. n. c.

UNETED STATE-3% canton.

ELMER E. WILLIAMS, OF BEDMOND, WASHINGTON, ASSIGNOR TO HARRY D. MENTZER, OF SEATTLE, WASHINGTON.

PIPE-TURNING APPARATUS.

Specification of Letters Patent.

Application filed February 24, 1906.

Patented Jan. 12, 1909.

Serial No. 302,727.

To all whom "it may concern:

Be it known that 1, Emma E. WILLIAMS, citizen of the United States, residing at Redmond, in the county of King and State of ,"Vashington, have invented certain new and useful Improvements in Pipe-Turning Apparatus, of which the following is a specification, reference being had therein to the accompanying drawings, in which Figure 1 is a plan view of the improved apparatus, and Fig. 2 is a side elevation of the same; 3 is a side elevation enlarged, of a portion of the base and carriage; Fig. 4i is a transverse section enlarged on the line M of Fig. 1; Fig. 5 is a plan View enlarged, of the pipe supporting cradle portion of the improved apparatus, and Fig. 6 is a front view of the same.

In manufacturing pipes from clay, espe cially the larger pipes, great care is required in handling them while in green or soft condition to prevent distortion. Pipes of this class are generally molded with the hub or joint flange downward, and require to be inverted after they leave the molding mechanism to prevent the relatively heavy straight portion of the pipe from distorting the hub portion, and the principal object of the present invention is to produce a simply constructed apparatus, whereby pipes formed of plastic material may be quickly reversed in position while in a green or soft condition and without danger of injuring the pipe.

To these ends, the invention consists in the novel construction and adaptation of devices, as will be hereinafter described in connection with the said drawings.

The reference numeral 10 designates a transverse shaft suitably mounted in journal boxes 11 of a frame 12, and having upon one end a bevel frictional wheel 13. Journaled also in the fame 12 is a longitudinal shaft 14 upon which are fixedly mounted a power driven belt-pulley 15 and two reversely disposed bevel friction-wheels 16,16 adapted to be alternately moved into engagement with the wheel 13 by imparting a proper longitudinal movement to the shaft 14:, and which is conveniently attained by a shifting mechanism engaging with a peripherally grooved collar 17 which is fixedly secured to the shaft 14. This shifting mechanism desirably comprises a bifurcated arm 18 which embraces said collar and is rigidly secured to a vibratory shaft 19 extending transversely beneath the frame and provided within easy reach of the operator, with a treadle lever 20 which may be actuated by hand or by foot. The branch of the bifurcated arm 18 which is adjacent to the driven frictional wheel 13 is extended upwardly into the orbit of a stud 18 protruding from the wheel 13 whereby the driving wheels 16 or 16, are automatically displaced out of engagement with said driven wheel when the latter has been rotated to the desired amount.

The shaft 10 is provided with a wheel 21 which is circuniferentially engaged by a brake band 21 which is actuated by a vibratory arm 22 upon a shaft 22 which is controlled by a lever or pedal 22. A disk 23 is also mounted upon the shaft 10 and is provided with diametrically opposite peripheral recesses 23 and juxtaposed abutments 28 acting as stops for limiting the circular movement of the shaft 10 by impinging with a spring pressed latch-bolt 24s which is reciprocally mounted in apertured lugs 24 on the machine frame. Intermediate the length of the shaft 10, and rigidly connected thereto is a frame 25 provided with slots through which extend clamping bolts 26 having hooked ends 26 for engaging marginal flanges 27 of interchangeable cradles, such as 27. These cradles are made of difierent sizes adapted to the various diameters of pipes to be handled and are, similarly to the one illustrated, formed with a corrugated concavity 27 in its front face corresponding with the semicircular form of the pipe for which it is intended. Pivotally connected to the respective opposite ends of the cradle are pairs of tongs 28 and 29 which are actuated by toggle devices comprised of links 30 connecting the end of each tongs part with levers 30 and upon opposite sides of the fulcrums 80 of the latter, and which are connected with the cradle by bracket attachments 30.

Disposed longitudinally of the machineframe and in line with the connected cradle, is a track composed of a pair of ground-rails 31 and a pair of top-rails 31 supported at V in links 43 from bearings 43 some distance thereabove by standards 31, and between which pairs of rails are the peripherally grooved or flanged, wheels 32 of a carria e 32 upon which the pipe is transported rom the ress to the turning machine. The plat orm of the carriage is formed of two longitudinal two-part bars 33 arranged to adjustably move toward or from each other by operating a spindle 34 having right and left-hand screw-threads out thereon and which respectively engage with corres onding female threads formed in the sai bars; and the rear parts of these bars are maintained in parallelism by toggle links 35 pivotally connected thereto and to astationary intermediate bar 35. The forward parts 33 of the bars 33 are connected to the latter by hinged rule joints 33 which allows of their being swung inwardly, but not outwardly, from alinement with the respective said rear parts, and are normally retained in such alined positions by a spring 36 connected with inwardly directed arms 33 of the bar-parts 33.

Movement is imparted to the carriage by manual or power means to convey the pipe from the press to the turning machinery.

Included, desirably, in the invention and positioned to the rear of the shaft 10, is a platform 43 which is supported by swingrigidly b o ted or otherwise secured to the floor, and the platform is, raised or lowered by a lever 44, provided upon a shaft 44 which is eX- tended through at least one of said bearings and integrally formed with or connected to one, at least, of the links 43. Although this platform affords great conveniece-to workmen in removing pipes, it may be omitted from the machine without materially effecting its usefulness and in lieu thereof the turned-over pipes can be deposed directly upon the floor.

The parts are shown in Figs. 1 and 2 in the position they occupy when the turning portion of the invention is inoperative and the carriage has received, upon its bar-parts 31, a length of pipe from the forming mold, not shown, by the lowering of the former shaft 4:5,and which has receded, as indicated in Fig. 2, with the pipe supported entirely by the carriage. The carriage is now moved to convey the pipe into the cradle, when the jaws of the tongs 28 and 29 are actuated by evers 30 to cause them to be moved toward the axis of the pipe and respectively embrace the floor board 46 and the f socket board 47 which have been previously insorted in the opposite ends of the pipe,-in the customary manner. The jaws of the tongs 29 in moving inwardly engage the bar-parts 33 and permit such jaws to pass beneath the socket board 47 without obstruction. After the pipe is thus engaged by and with the cradle the latter is given a partial revolution by frictionally engaging, through the aforedes'cribed actuating'media, the wheel 16 with the wheel 13, whereupon the shaft 10 carryin over thecradle with its load deposits tie same directly upon the floor or upon a receiving platform 43. lVhen the pipe has, in this operation, been carried over its axis of revolution, the frictional wheel 16 may be disengaged from the driven wheel 13 by the operator actuating the said forked arm 18 therewith to move the then driving friction wheel out of contact with the driven one. Meanwhile the latch-bolt 24 has been thrust out of its seat in one of the recesses 23 of the disk 23 and, as the latter rotates, wipes the periphery of the disk 23 which intervenes this recess and the other one and into which it; is resiliently seated after being stopped by the abutment thereat, which abutment is disposed in such a position as to be engaged when the reversal of the pipe is accomplished. The pipe being deposited upon said receiving platform, or floor, is disengaged from the said tongs when the cradle is returned to its first position by a reversal of the processes just described and is then ready to receive another pipe when presented by the carriage.

What I claim as my invention, and desire to secure by LettersPatent, is'

1. In a pipe turner, a cradle adapted to receive the pipe to be 7 turned, oppositely opei'rating tongs carried by said cradle and adapted to detachably enga e the pipe within the cradle, and meansgor reversin the position of said cradle and the tongs an pipe carried thereby.

2. In a pipe turner, a shaft, means for rotating saidshaft, a cradle adapted to receive the pipe to be turned, means for detachably coupling said cradle to said shaft, oppositely oaerating tongs carried by said cradle and a apted todetachably' engage the pipe within the cradle.

3. In a pipe turner, the combination with the machine frame, of a shaft journaled therein, a cradle carried by the shaft and adapted to receive the pipe to be turned, pairs of tongs connected to the opposite ends of'the cradle ando erating upon the sides of the pipe to mova l support the pipe the cradle, a brake evice for the shaft, means for limiting the extent of the revolution of the shaft, a driven'friction wheel rigidly secured to the shaft, another shaft journaled in said frame, two driving friction Wheels upon the last mentioned shaft and adapted to be interchangeably engaged with said driven Wheel, and means for moving said driving Wheels into or out of engagement with said driven Wheel.

In testimony whereof I aflix my signature in presence of two Witnesses.

ELMER E. WILLIAMS.

Witnesses PIERRE BARNES, HARRY MENTZER. 

